“Opinions are like orgasms—mine matters most, and I don’t care if you have one” is a jocular one-line saying that has been printed on many images. “Opinions are like orgasms. Mine’s more important and I don’t give a fuck if she has one” was cited on Twitter on March 5, 2010.
 
“‘Opinions are like orgasms… mine matters most and I really don’t care if you have one.’ — Sylvia Plath” was cited on Incorrect Sylvia Plath Quotes on October 20, 2012, but the writer Sylvia Plath (1932-1963) never said it.
 
“Opinions are like assoholes—everybody’s got one” is a similar saying.
       
 
Twitter
LeFonk
‏@LeFonk
Opinions are like orgasms.
Mine’s more important and I don’t give a fuck if she has one.  
6:34 AM - 5 Mar 2010
 
Twitter
Cassi Kareen McLaren
‏@CassandraLillyx
Found a good joke today : “Opinions are like orgasms, Mine’s more important and I don’t care if anyone else has one.” :D
7:44 AM - 5 Mar 2010
 
Twitter
Tim
‏@sm1thy23
Opinions are like orgasms, I only care about mine and only mine matters #sickipedia
6:08 AM - 11 Mar 2010
 
Incorrect Sylvia Plath Quotes 
“Opinions are like orgasms… mine matters most and I really don’t care if you have one.”
— Sylvia Plath
11:21 pm •  20 October 2012
 
Google Books
Roadmap into a Twisted Mind
By Bruno Gagnon
Victoria, BC: FriesenPress
2014
Pg. 11:
Opinions are like orgasms: mine matter most, and I don’t care if you have one.
 
reddit
Opinions are like orgasms
submitted November 12, 2015 by OpulentMonarchy
Mines more important and I really don’t care if you have one.
 
reddit
Opinions are like orgasms, once I’ve had mine I don’t care about yours.
submitted April 15, 2016 by xeo_wulf
Quoted from Ex on the Beach.
 
reddit
Opinions are like orgasms…
submitted August 1, 2016 by Captainbosspirate
Mine is more important, and I don’t really care if you have one.